Microfluidic Fabrication Of Berberine-Loaded Nanoparticles For Cancer Treatment Applications
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY(2021)
Abstract
Introduction: Production of chitosan nanoparticles using the ionic gelation method assisted by a microfluidic chip has not been studied extensively. Still, there are some dominant limitations to the production of chitosan nanoparticles utilizing this method and has been reported in previous studies.Aim: To address this issue, the current study introduces a novel approach to diminishing those hurdles and systematically examines different microfluidic production processes which influence the production of chitosan/sodium tripolyphosphate nanoparticles (CSNPs) for drug delivery applications. This study aimed to enhance the anticancer effect of berberine by a unique nanoformulation approach using a microfluidic chip compared to free drug delivery.Method: In this approach, by adjusting the preparation procedures, changing the chitosan concentration and flow rate ratio, and using acidic tripolyphosphate (pH < 4), six types of berberine-loaded CSNPs with different physical properties were fabricated. The drug release profile and cytotoxicity effect of selected samples were investigated using MTT and apoptosis assays, respectively.Results: Finely dispersed berberine loaded chitosan nanoparticles (PDI<0.3) with an average size of (130-200 nm) were produced. By this nanoencapsulation method, the loading content of berberine was enhanced from 11 to 55%. Based on the size and drug loading content, three samples were chosen for In-vitro studies. According to the results of MTT and apoptosis assays it was found that selected berberine-loaded chitosan nanoparticles demonstrated anti-proliferative effects in treated cells compared to free berberine delivery. With the implemented strategy of this study, homogeneous continuous production of CSNPs as a proper drug carrier candidate for drug delivery applications without any limitation was facilitated.
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Key words
Microfluidic chip, Cancer treatment, Chitosan nanoparticles, Berberine, Ionic gelation
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